Question

Given that y = A sin[(2π/λ (ct -x ))], where y and x are measured in metre. Which of the following statements is true? 

(a) The unit of λ is same as that of x and A 

(b) The unit of λ is same as that of x but not of A

(c) The unit of c is same as that of 2π/λ

(d) The unit of (ct – x) is same as that of 2π/λ

Answer 1

Correct option: (a) The unit of λ is same as that of x and A

Explanation: 

The unit of λ, x and A are the same.